Table 2.

Critical appraisal of full texts using Joanna Briggs Institute (JBI) tool for epidemiological studies

	Bjornland, 2020[32]	Flores, 2018[21]	Malik, 2017[25]	Morris, 2015[27]	Schatz, 2018[28]	Thebaut, 2017[12]	Van Vaisberg, 2019[23]	Wang, 2017[24]
Was the sample frame appropriate to address the target population?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Were study participants sampled in an appropriate way?	Unclear	Yes	Yes	Yes	Yes	Unclearb	Yes	Yes
Was the sample size adequate?	NA	NA	NA	NA	NA	NA	NA	NA
Were the study subjects and the setting described in detail?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Were valid methods used for the identification of the condition?	Unclear	Yes	Noa	Yes	Yes	Unclearc	Unclear	Yes
Was the condition measured in a standard, reliable way for all participants?	Unclear	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was there appropriate statistical analysis?	Yes	Yes	NA	NA	NA	Yes	Yes	NA
Was the response rate adequate, and if not, was the low response rate managed appropriately?	NA	NA	NA	NA	Yes	Yes	NA	NA

^aGenetic analysis not available

^bProspective design, unclear if sampling is consecutive

^cUnclear if genetic analysis performed on all patients